1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
package main
import (
"encoding/xml"
"flag"
"fmt"
"io/ioutil"
"os"
"text/template"
)
var usage = `%[1]s generates Go code to support CLDR plural rules.
Usage: %[1]s [options]
Options:
`
func main() {
flag.Usage = func() {
fmt.Fprintf(os.Stderr, usage, os.Args[0])
flag.PrintDefaults()
}
var in, cout, tout string
flag.StringVar(&in, "i", "plurals.xml", "the input XML file containing CLDR plural rules")
flag.StringVar(&cout, "cout", "", "the code output file")
flag.StringVar(&tout, "tout", "", "the test output file")
flag.BoolVar(&verbose, "v", false, "verbose output")
flag.Parse()
buf, err := ioutil.ReadFile(in)
if err != nil {
fatalf("failed to read file: %s", err)
}
var data SupplementalData
if err := xml.Unmarshal(buf, &data); err != nil {
fatalf("failed to unmarshal xml: %s", err)
}
count := 0
for _, pg := range data.PluralGroups {
count += len(pg.SplitLocales())
}
infof("parsed %d locales", count)
if cout != "" {
file := openWritableFile(cout)
if err := codeTemplate.Execute(file, data); err != nil {
fatalf("unable to execute code template because %s", err)
} else {
infof("generated %s", cout)
}
} else {
infof("not generating code file (use -cout)")
}
if tout != "" {
file := openWritableFile(tout)
if err := testTemplate.Execute(file, data); err != nil {
fatalf("unable to execute test template because %s", err)
} else {
infof("generated %s", tout)
}
} else {
infof("not generating test file (use -tout)")
}
}
func openWritableFile(name string) *os.File {
file, err := os.OpenFile(name, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
if err != nil {
fatalf("failed to write file %s because %s", name, err)
}
return file
}
var codeTemplate = template.Must(template.New("spec").Parse(`package language
// This file is generated by i18n/language/codegen/generate.sh
func init() {
{{range .PluralGroups}}
RegisterPluralSpec({{printf "%#v" .SplitLocales}}, &PluralSpec{
Plurals: newPluralSet({{range $i, $e := .PluralRules}}{{if $i}}, {{end}}{{$e.CountTitle}}{{end}}),
PluralFunc: func(ops *Operands) Plural { {{range .PluralRules}}{{if .GoCondition}}
// {{.Condition}}
if {{.GoCondition}} {
return {{.CountTitle}}
}{{end}}{{end}}
return Other
},
}){{end}}
}
`))
var testTemplate = template.Must(template.New("spec").Parse(`package language
// This file is generated by i18n/language/codegen/generate.sh
import "testing"
{{range .PluralGroups}}
func Test{{.Name}}(t *testing.T) {
var tests []pluralTest
{{range .PluralRules}}
{{if .IntegerExamples}}tests = appendIntegerTests(tests, {{.CountTitle}}, {{printf "%#v" .IntegerExamples}}){{end}}
{{if .DecimalExamples}}tests = appendDecimalTests(tests, {{.CountTitle}}, {{printf "%#v" .DecimalExamples}}){{end}}
{{end}}
locales := {{printf "%#v" .SplitLocales}}
for _, locale := range locales {
runTests(t, locale, tests)
}
}
{{end}}
`))
func infof(format string, args ...interface{}) {
fmt.Fprintf(os.Stderr, format+"\n", args...)
}
var verbose bool
func verbosef(format string, args ...interface{}) {
if verbose {
infof(format, args...)
}
}
func fatalf(format string, args ...interface{}) {
infof("fatal: "+format+"\n", args...)
os.Exit(1)
}
|
